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1. Indicate whether the following statements are True or False Cross out and rew

ID: 2983753 • Letter: 1

Question

1. Indicate whether the following statements are True or False


Cross out and rewrite something in each false statement to make it true !



a. the percentage of the total area under the normal curve between z = - 1.4 and z = 1.3 is 17.76%.


b. if the derivative of y= f(x) exists at x=a, then f'(a) is the slope of the line tangent to the graph of f(x) at x= a


c. The average rate of change for the function(x) = 4x^2 -- 6x + 7 from x= 3 to x= 8 is 34


d. If R(x) is a function which represents the revenue derived from selling x units of a product, then R'(x) is the marginal revenue function.


e. Yearly income in the U.S. is a classic example of a "normal" distribution

Explanation / Answer

a) FALSE

the percentage of the total area under the normal curve between z = - 1.4 and z = 1.3 is 82.24%

b) TRUE

c) FALSE

The average rate of change for the function(x) = 4x^2 -- 6x + 7 from x= 3 to x= 8 is 38

d) TRUE

e) TRUE/